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-rw-r--r--core/comm/HardwareSerial.cpp97
-rw-r--r--core/comm/HardwareSerial.h48
-rw-r--r--core/comm/HardwareUsb.cpp96
-rw-r--r--core/comm/HardwareUsb.h48
4 files changed, 289 insertions, 0 deletions
diff --git a/core/comm/HardwareSerial.cpp b/core/comm/HardwareSerial.cpp
new file mode 100644
index 0000000..04d8d18
--- /dev/null
+++ b/core/comm/HardwareSerial.cpp
@@ -0,0 +1,97 @@
+/* *****************************************************************************
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Created: 12/19/09 05:15:24 EST
+ * Copyright (c) 2009 Perry L. Hung. All rights reserved.
+ *
+ * ****************************************************************************/
+
+/**
+ * @file HardwareSerial.cpp
+ *
+ * @brief Wiring-like serial api
+ */
+
+#include "wiring.h"
+#include "HardwareSerial.h"
+#include "usart.h"
+#include "gpio.h"
+#include "timers.h"
+
+#define USART1_TX_PORT GPIOA_BASE
+#define USART1_TX_PIN 9
+#define USART1_RX_PORT GPIOA_BASE
+#define USART1_RX_PIN 10
+
+#define USART2_TX_PORT GPIOA_BASE
+#define USART2_TX_PIN 2
+#define USART2_RX_PORT GPIOA_BASE
+#define USART2_RX_PIN 3
+
+#define USART3_TX_PORT GPIOB_BASE
+#define USART3_TX_PIN 10
+#define USART3_RX_PORT GPIOB_BASE
+#define USART3_RX_PIN 11
+
+HardwareSerial::HardwareSerial(uint8_t usartNum) {
+ ASSERT(usartNum == 1 ||
+ usartNum == 2 ||
+ usartNum == 3);
+ this->usartNum = usartNum;
+}
+
+uint8_t HardwareSerial::read(void) {
+ return usart_getc(usartNum);
+}
+
+uint32 HardwareSerial::available(void) {
+
+ return usart_data_available(usartNum);
+}
+
+void HardwareSerial::write(unsigned char ch) {
+ usart_putc(usartNum, ch);
+}
+
+void HardwareSerial::begin(uint32_t baud) {
+ ASSERT(!(baud > USART_MAX_BAUD));
+
+ /* Set appropriate pin modes */
+ switch (usartNum) {
+ case 1:
+ gpio_set_mode(USART1_TX_PORT, USART1_TX_PIN, GPIO_MODE_AF_OUTPUT_PP);
+ gpio_set_mode(USART1_RX_PORT, USART1_RX_PIN, GPIO_MODE_INPUT_FLOATING);
+ /* Turn off any pwm */
+ timers_disable_channel(1, 2);
+ break;
+ case 2:
+ gpio_set_mode(USART2_TX_PORT, USART2_TX_PIN, GPIO_MODE_AF_OUTPUT_PP);
+ gpio_set_mode(USART2_RX_PORT, USART2_RX_PIN, GPIO_MODE_INPUT_FLOATING);
+ /* Turn off any pwm */
+ timers_disable_channel(2, 3);
+ break;
+ case 3:
+ gpio_set_mode(USART3_TX_PORT, USART3_TX_PIN, GPIO_MODE_AF_OUTPUT_PP);
+ gpio_set_mode(USART3_RX_PORT, USART3_RX_PIN, GPIO_MODE_INPUT_FLOATING);
+ break;
+ default:
+ ASSERT(0);
+ }
+
+ usart_init(usartNum, baud);
+}
+
+HardwareSerial Serial1(1);
+HardwareSerial Serial2(2);
+HardwareSerial Serial3(3);
diff --git a/core/comm/HardwareSerial.h b/core/comm/HardwareSerial.h
new file mode 100644
index 0000000..a3913f9
--- /dev/null
+++ b/core/comm/HardwareSerial.h
@@ -0,0 +1,48 @@
+/* *****************************************************************************
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Created: 12/19/09 05:45:37 EST
+ * Copyright (c) 2009 Perry L. Hung. All rights reserved.
+ *
+ * ****************************************************************************/
+
+/**
+ * @file HardwareSerial.h
+ *
+ * @brief
+ */
+
+#ifndef _HARDWARESERIAL_H_
+#define _HARDWARESERIAL_H_
+
+#include "Print.h"
+
+class HardwareSerial : public Print {
+ private:
+ uint8 usartNum;
+ public:
+ HardwareSerial(uint8_t);
+ void begin(uint32_t);
+ uint32 available(void);
+ uint8_t read(void);
+ void flush(void);
+ virtual void write(unsigned char);
+ using Print::write;
+};
+
+extern HardwareSerial Serial1;
+extern HardwareSerial Serial2;
+extern HardwareSerial Serial3;
+#endif
+
diff --git a/core/comm/HardwareUsb.cpp b/core/comm/HardwareUsb.cpp
new file mode 100644
index 0000000..269a68f
--- /dev/null
+++ b/core/comm/HardwareUsb.cpp
@@ -0,0 +1,96 @@
+/* *****************************************************************************
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * ****************************************************************************/
+
+/**
+ * @file HardwareUsb.cpp
+ *
+ * @brief Wiring like serial api to USB virtual COM
+ */
+
+#include "wiring.h"
+#include "HardwareUsb.h"
+#include "bootVect.h"
+#include "usb.h"
+
+HardwareUsb::HardwareUsb(void) {
+ mapleVectTable = (BootVectTable*)(BOOTLOADER_VECT_TABLE);
+ mapleVectTable->serial_tx_cb = usb_tx_cb;
+ mapleVectTable->serial_rx_cb = usb_rx_cb;
+ mapleVectTable->usb_local_obj_ptr = this;
+ rx_buffer_offset_in = 0;
+ rx_buffer_offset_out = 0;
+}
+
+uint8_t HardwareUsb::read(void) {
+ uint8_t outVal = rx_buffer[rx_buffer_offset_out++];
+
+#if 1
+ if (rx_buffer_offset_out == rx_buffer_offset_in) {
+ flush();
+ }
+#endif
+
+ return outVal;
+}
+
+uint8_t HardwareUsb::available(void) {
+ ASSERT(rx_buffer_offset_out >= 0);
+ // return rx_buffer_offset+1;
+ // return usb_serialGetRecvLen();
+ return rx_buffer_offset_in - rx_buffer_offset_out;
+}
+
+void HardwareUsb::flush(void) {
+ rx_buffer_offset_in = 0;
+ rx_buffer_offset_out = 0;
+}
+
+void HardwareUsb::write(unsigned char ch) {
+ usb_serialWriteChar(ch);
+}
+
+void HardwareUsb::begin(void) {
+ /* placeholder for usb<->uart linking */
+}
+
+void HardwareUsb::usb_rx_cb(void) {
+ BootVectTable *vectTable = (BootVectTable*)(BOOTLOADER_VECT_TABLE);
+ HardwareUsb *thisPtr = (HardwareUsb*) vectTable->usb_local_obj_ptr;
+
+ uint8_t numBytes = usb_serialGetRecvLen();
+
+#if 0
+ /* ONE-SHOT-TO-READ Version (buffer cleared on next recv interrupt */
+ usb_copyRecvBuffer(thisPtr->rx_buffer,numBytes);
+ thisPtr->rx_buffer_offset_in = numBytes;
+ thisPtr->rx_buffer_offset_out = 0;
+#else
+ /* FIFO DISCARD OVERFLOW VERSION */
+ if ((thisPtr->rx_buffer_offset_in + numBytes) > (USB_SERIAL_BUF_SIZE)) {
+ numBytes = USB_SERIAL_BUF_SIZE - thisPtr->rx_buffer_offset_in;
+ }
+
+ if (numBytes > 0) {
+ ASSERT(thisPtr->rx_buffer_offset_in <= USB_SERIAL_BUF_SIZE);
+ usb_copyRecvBuffer(&(thisPtr->rx_buffer[thisPtr->rx_buffer_offset_in]),numBytes);
+ thisPtr->rx_buffer_offset_in += numBytes;
+ }
+#endif
+}
+
+void HardwareUsb::usb_tx_cb(void) {
+ /* placeholder for when serial dumps exceed buflen */
+}
diff --git a/core/comm/HardwareUsb.h b/core/comm/HardwareUsb.h
new file mode 100644
index 0000000..b8733c1
--- /dev/null
+++ b/core/comm/HardwareUsb.h
@@ -0,0 +1,48 @@
+/* *****************************************************************************
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * ****************************************************************************/
+
+/**
+ * @file HardwareUsb.h
+ *
+ * @brief Wiring like serial api to USB virtual COM
+ */
+
+#ifndef _HARDWAREUSB_H_
+#define _HARDWAREUSB_H_
+
+#include "Print.h"
+#include "bootVect.h"
+#include "usb.h"
+
+class HardwareUsb : public Print {
+ private:
+ BootVectTable* mapleVectTable;
+ static void usb_rx_cb(void);
+ static void usb_tx_cb(void);
+ unsigned char rx_buffer[USB_SERIAL_BUF_SIZE];
+ int8_t rx_buffer_offset_out;
+ int8_t rx_buffer_offset_in;
+ public:
+ HardwareUsb(void);
+ void begin();
+ uint8_t available(void);
+ uint8_t read(void);
+ void flush(void);
+ virtual void write(unsigned char);
+ using Print::write;
+};
+
+#endif //_HARDWAREUSB_H
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